The kidnapping of Virginia Piper is considered one of the most successful kidnappings in U.S. history. Nearly 50 years after the Twin Cities socialite was grabbed from her garden, mystery still surrounds the case. Who were her abductors? Was one of them the man later convicted of killing five people, including his own son? And whoever the guilty party was, what did they do with the $1 million ransom money, the largest ever paid at the time?